The Catholic tradition maintains that the objective norms governing right action are accessible to reason, prescinding from the content of revelation.
Pope Benedict XVIBefore His gaze all falsehood melts away. This encounter with Him, as it burns us, transforms and frees us, allowing us to become truly ourselves... His gaze, the touch of His heart heals us through an undeniably painful transformation "as through fire". But it is a blessed pain, in which the holy power of His love sears through us like a flame, enabling us to become totally ourselves and thus totally of God.
Pope Benedict XVITo have Christian hope means to know about evil and yet to go to meet the future with confidence. The core of faith rests upon accepting being loved by God, and therefore to believe is to say Yes, not only to him, but to creation, to creatures, above all, to men, to try to see the image of God in each person and thereby to become a lover. That's not easy, but the basic Yes, the conviction that God has created men, that he stands behind them, that they aren't simply negative, gives love a reference point that enables it to ground hope on the basis of faith.
Pope Benedict XVI